Use True Tone on your Mac

The True Tone technology in Mac computers uses advanced multichannel sensors to adjust the color and intensity of your display and Touch Bar to match the ambient light so that images appear more natural.

You can turn True Tone on or off in the Displays pane of System Preferences:

Choose Apple menu () > System Preferences, then click Displays.

Click the Display tab.

Use the True Tone checkbox to turn the feature on or off.*

True Tone on external displays

True Tone can also adjust these external displays when they're connected to your Mac notebook with its lid open: